Inner tube



Q Q QQQQQQ Q Q Q Q Q Q Q QQQQ QQQQQQ G. A. LANE INNER TUBE Filed Oct Ig: if

July 3l, 1923.

Patented duly El, ll923.,

stai-rss Parana orties;

GEORGE A. LANE, OF'LORAlN, OHIO, ASSlEGNOR OF ONE-HALF TO ISAAC A. CHAPPELL AND ONE-HALF TO 'JOHN C. HAYES, BOTH OF LORAEN, OHIO. p

INNER TUBE.

To all iii/om may concern:

Be it known that l, GEORGE A. LANE, a citizen oit the United States, residing at liorain, in the county of Lorain and State oit Ohio, have invented certain new and use- Alul improvements in Inner Tubes, ot' which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in inner tubes for pneumatic tires and it is an object ot the invention to provide a novel andimproved inner tube which is non-elastic and non-expansible and which effectively serves to reduce to a minimum the chances oit a blow out.

The invention consists in the details of construction and in the combination and arrangement olf the several parts o l my improved. .inner tube whereby certain important advantages are attained and the device rendered simpler', less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more Yfully set forth. i

The novel 'features of my invention will hereinafter be delinitely claimed.

ln order that my invention may be the better understood l will now proceed to describe the same with reference to the accompanyiug d r awings, wherein liigure l is a Aragmentary view in perspective ot an inner tube constructedin accordance with an embodiment of my .invention, a portion of the textile lamination being turned back 'for clarity disclosure;

Figure 2 is a transverse sectional View taken r'lnough a device constructed in accordance with an embodiment of my invention; and

Figure 3 is a view in top plan of the tex` tile 'fabric employed in my inner tube, the intermediate portion thereof being cut away. i

as disclosed in the accompanying drawings, my improved tube comprises an inner lamination l oi rubber, the saine being initially molded in tubular form upon a straight metal pole. A textile lamination Q is vthen spirally disposed over the inner lamination l, saidyfabric being cut on the bias with its opposite end portions obliquely disposed as is clearly illustrated in Figure 3. VThis lamination 2 is of such length and width whereby the transverse flexing of the strip 2 will resul-t in the same entirely surrounding the inner rubber lamination l with the oblique end portions in overlapping` relation as indicated at 3 in Figure l and the longitudinal marginal portions ot said lamination 2 in slight overlying relation as indicated at L in Figure 2.

After the lamination 2 has been applied a lamination o, comprising a relatively thin sheet of rubber, is wrapped around the lamination 2 in substantially the same manner as has horeinbefore been set forth with respect to the lamination Q. Alfter the tube has been properly builded, the opposite ends of the structure are spliced in the well known manner and the ends of the structure subjected in the well known manner to a vulcanizing operation. The outer lamination 5 is employed to prevent the outer surface of the tube from chaling, while having the lamination 2 cut on the bias, it has been established in actual practice that the tube is materially strengthened as the full benetit is obtained of the strength of both sets of strands comprised in the fabric 2.

An inner tube constructed in accordance .with an embodiment of my invention is non-elastic and non-expansible and this is found to be of particular beneiit or advantage to reduce the liability of a blow out and also when the carcass or casing has a rim cut, as under such conditions the tube proper will not expand through the casing.

From the foregoing description it is thought to be obvious that an inner tube constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my inven` tion is susceptible of some change and modilication without departing from the principles and spirit thereof and tor this reason l do not wish to be understood as limitingl myseliE to the precise arrangement and formation ot the several parts herein shown in carrying out my invention in practice eX- cept as hereinafter claimed.

That is claimed is y As a new article of manu-facture, an inner tube comprising an inner lamination of rubber the same being` initially molded in tubular form, a textile lamination cut on the bias and spirally disposed around the inner eov lOll

lamination, said textile lamination being' of a length and Width to surround the rubber lamination, the ends of the textile lamination being obliquely cut and in overlapping 5 relation, the longitudinal marginal portions of said fabric lamination being in slight overlapping relation, and an outer lamination of sheet rubber Wrapped around the v textile lamination, the opposite ends of the structure being spliced. 10

In testimony whereof I hereunto aiix my signature.

GEORGE A. LANE. 

